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Smugglers in Egypt and Gaza worry their trade will be adversely affected by returning Palestinians lugging goods bought for cheaper prices in Egypt. They know a total termination of the blockade will spell the end of their industry.

"If the border opened, there won't be any tunnels," Abu Al-Amir, a tunnel worker in Gaza, said in a telephone interview with AOL News. "If the tunnels end, no one will work."

Al-Amir said nervous conversations about what will happen if the border stays open have rippled through the smuggling community in Gaza. Although his work has not been affected, Al-Amir said, "There are people who are afraid."

Right now, it's business as usual for many of Gaza's tunnels that ferry construction materials, something neither of the borders is allowing through.